Separate Aerobic Digestion

The stabilization of sewage sludge is a prerequisite for its agricultural use. A separate aerobic sludge stabilization intensifies this process and relieves the load on existing activated sludge plants. Depending on the requirements, pig and cattle manure can also be excellently stabilized and, at thermophilic temperatures (>50 °C), sanitized.

In covered tanks, and with the sludge thickened beforehand, the sludge heats up by itself to the mesophilic temperature range (~35 °C) when it is aerated. This allows short retention times and correspondingly small reactors for the stabilization.

The FUCHS Centrox Aerator with foam control handles aeration, circulation and foam limitation with just one machine. The combination of small reactors and cost-effective machinery reduces the investment costs to a minimum. The aerobic stabilization process is very robust and can easily be started up and controlled. Together with the reliable FUCHS Centrox Aerator with foam control, this process offers a user-friendly solution especially for small and medium-sized wastewater treatment plants.

Advantages

• Proven FUCHS machine technology
• A single machine for aeration, mixing and foam control
• Use of existing tanks possible
• Easy plant extension
• Treatment of excess sludge, mixed sludge and grease sludge
• Short process retention times
• Reduced space requirement thanks to small reactors
• Low investment costs
• Industrial and municipal applications
• Fertilizer with good plant compatibility as the end product